← Back to Exoplanet Archive
HD 154857 b
Orbiting HD 154857, discovered in 2004 (7509) by Anglo-Australian Telescope via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 778.68 M⊕ |
| Orbital period | 408.60 Earth days (~1.1 Earth years) |
| Orbital eccentricity | 0.460 |
| Equilibrium temperature | Unknown |
Host star — HD 154857
| Temperature | 5589 K (5316 °C) |
| Radius | 2.30 R☉ |
| Mass | 1.96 M☉ |
Location
| Distance from Earth | 63.4 pc (~207 light-years) |
| Right ascension / Declination | 257.8162 / -56.6810 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.